SN3 1 postcode sector in the SN3 district
SN3 1 is a sector of the SN3 district: every postcode that starts SN3 1. It has 212 postcodes in use, 9 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.
Not sure what a sector is? UK postcode format explained.
Every postcode in the SN3 1 sector, by gigabit broadband
- No home or business can get gigabit: 10
- Some can get gigabit: 20
- Every home and business can get gigabit: 174
- Ofcom gives no figure: 8
- Outline: where 5 or more postcodes without gigabit lie together
Of the 212 postcodes in the SN3 1 sector that ONS places, 10 have no home or business that can get gigabit, 20 have some that can, 174 can all get it and 8 have no Ofcom figure.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
Where the postcodes without gigabit lie together
- 6 postcodes without gigabit, outlined on the map. SN3 1EF, is the one nearest the middle of them.
What do homes sell for in SN3 1?
Homes in SN3 1 sold for a typical £340,500 in the 12 months to September 2026, across 140 sales, HM Land Registry's figures show. The 12 months before gave £347,500 from 151 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £473,750 26 sales
- Semi-detached £350,000 66 sales
- Terraced £285,000 25 sales
- Flat or maisonette £149,000 23 sales
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value at the postcodes that start SN3 1. A typical price is the median, the middle sale, given from 5 sales or more.
How we work this out: house prices by postcodeSource: HM Land Registry Price Paid Data, files dated 28 October 2026.
Postcodes in SN3 1
Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.
Other sectors in SN3
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Ofcom Connected Nations
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
Something wrong on this page? Report an error and we will check it against the source. All our sources